CVE-2026-29106Network attack vector

Victim-context script execution via return_id event handler

Published Mar 19, 2026 · Updated Mar 19, 2026

Cross-site scripting in SuiteCRM before 7.15.1 and 8.0.0 through 8.9.2 allows remote authenticated users to alter a victim's page. The application copies return_id into a double-quoted HTML event-handler attribute, where browser decoding permits injected script execution. Administrator privileges and victim interaction are required; the script can issue victim-context requests, redirect the victim, or deface page content.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in SuiteCRM before 7.15.1 and 8.0.0 through 8.9.2 allows remote authenticated users to alter a victim's page. The application copies return_id into a double-quoted HTML event-handler attribute, where browser decoding permits injected script execution. Administrator privileges and victim interaction are required; the script can issue victim-context requests, redirect the victim, or deface page content.

The record

CVE
CVE-2026-29106
Published
Mar 19, 2026
Updated
Mar 19, 2026
Vendor
SalesAgility
Product
SuiteCRM
Classifications
CWE-116, CWE-79, CWE-80, CWE-159, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.15.1
  2. Affected versionversion=>= 8.0.0, < 8.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SalesAgility · SuiteCRMversion=< 7.15.1; version=>= 8.0.0, < 8.9.3

Published CVSS scores

5.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-159Improper Handling of Invalid Use of Special Elements
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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